Answer:
genetic changes among and within populations
Explanation:
Microevolution occurs when there are changes in gene frequency within a population over a short period of time. Microevolution specifically refers to changes within a population, a population being a group of organisms that breed with each other.
hope this helps :)
Answer:
B, that is, nitrogen-fixing bacteria in the soil convert nitrogen from the air to make nitrates.
Explanation:
As we know, Nitrogen cycle hold alot of importance in earth's geology because it moves the Nitrogen from soil to the atmosphere and then back to the biosphere fulfilling the Nitrogen needs of animals as well as plants.
Just like all other biogeochemical cycles, there are different stages of Nitrogen cycle through which an interchange of nitrogen between different reservoirs occur.
The Nitrogen present in the atmosphere is not usable for the animals and plants. However, there are some bacteria present in the soil called nitrogen-fixing bacteria that convert the atmospheric nitrogen to a usable form called nitrates. Plants are able to use these Nitrates and fulfill their nitrogen demands as nitrogen is the main component of the chlorophyll - molecule that makes photosynthesis possible.
Therefore B is the appropriate option.
Hope it help!
Answer:
Yes.
Explanation:
Yes, I am bothered by working conditions at Foxconn plants and do worry about the production of a phone that might have contributed to a death of a worker. If the working conditions are not satisfactory and the life of the worker are in danger so I worry about the lives of workers that work at Foxconn plants because of unsafe condition of work and stop the workers from working until safety measures should be implemented.
Answer:
A dominant trait can be described as a trait which is dominant over a recessive trait. A recessive trait can be described as a suppressed trait which gets masked by a dominant trait.
When the two alleles of a gene for a trait are similar, they are said to be homozygous. When the two alleles of a gene for a trait are different they are termed to be heterozygous.
A cross between two homozygous pea plants will result in all of the offsprings being similar in phenotype and genotype to their parents.
Answer:
Appendix
Explanation:
Though new evidence has shown that our Appendix might not be so useless, we still generally consider it vestigial in school textbooks & by word of mouth.
Have a nice April Fool's lol.
